Writing under the pen name of Fougasse, Cyril Kenneth Bird was one of the most popular cartoonists and illustrators of the first half of the twentieth century and arguably the most famous creator of British poster art. The images and captions to his World War II propaganda posters 'Careless Talk Costs Lives', which were part of the anti-rumour/gossip campaign orchestrated by the Ministry of Information, are fondly remembered today by those who experienced life on the Home Front. The 'Careless Talk...' campaign had a similarly dramatic influence on American, Canadian and Australian posters. During his lifetime Fougasse's work was familiar to the nation through his cartoons, posters and book illustrations. He created designs for London Underground; on public health and road safety, embodying a distinct style and design philosophy that favoured humour in art and sloganeering to create memorable messages. This illustrated book analyses not just Fougasse's wartime work and comparable posters by other war artists, but his lasting influence on poster campaigns abroad, his advertising and illustration work and other public information posters.